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Class Work Let’s start with some review!! 1.Solve for x. x 7 42
Trig – Section 6 Law of Sines Objectives: To understand how to use the Law of Sines to solve any triangle.
Law of Sines The Law of Sines says that in any triangle the lengths of the sides are proportional to the sines of the corresponding angles. A B C a b c
Ex 1. Solve the triangle when given ASA. 30 A B C a b 100 40
Ex 2. Solve the triangle (AAS)
Class Work 5. Solve for x. Round answers to nearest tenth.
6. Solve for x. Round answers to nearest tenth.
You can also use the Law of Sines for two sides and an angle (SSA). Ex 3. Solve ABC if m A = 80 , a = 100 and b = 10
Ex 4. Solve ABC if m A = 41 , a = 40 and b = 89.
Class Work 7. Solve ABC if m A = 80 , a = 6.5 and b = 3.4 8. Solve ABC if m A = 80 , a = 10 and b = 100
Class Work Practice Worksheet (odds)
HW pg. 506 1,3,4,8,9,11,14,16,19
The Law of Cosines February 25, 2010.
Aim: What is the Law of Sine? Do Now: In ∆ABC, AC = b, BC = a, and the height is (h). Find: 1. sin A 2. sin B A D B C HW: p.567 # 6,8,12,19,20,21,22,23.
7-4A Similar Figures and Proportions Learning Objective: To determine whether two given figures are similar, and to use similarity to find missing lengths.
Chapter 6 Trigonometry- Part 3. Aim #6.1:How do we apply the Law of Sines? An oblique triangle is one that does not contain a right angle.
Chapter 6 – Trigonometric Functions: Right Triangle Approach
Section SOLVING OBLIQUE TRIANGLES
Bellringer Angle A (or θ) = a = 1, b =, and c = 2.
TODAY IN ALGEBRA 2.0… Review: Pythagorean Theorem and the six trigonometric functions Learning Target: 13.1 You will find missing sides of a triangle.
1 © 2010 Pearson Education, Inc. All rights reserved © 2010 Pearson Education, Inc. All rights reserved Chapter 6 Applications of Trigonometric Functions.
The Law of SINES. When Do I use Law of Sines vs. Law of Cosine ? Two sides One opposite angle given Angle opposite side Two angles One opposite side given.
April 4 th copyright2009merrydavidson CALCULATOR TODAY Happy Summer Birthdays to: Timmy Manley: 7/5 th Andrew Krasner: 8/14 th.
Law of Sines. Triangles Review Can the following side lengths be the side lengths of a triangle?
2-24 Honors Geometry Warm-up
13.4 L AW OF S INES 13.5 L AW OF COSINES Algebra II w/ trig.
Law of Sines We use law of Sines to find the length of a missing side or degree of a missing angle in an Oblique triangle(No Right Angle) In order to do.
How do I use the sine, cosine, and tangent ratios to solve triangles?
Warm-up A farmer has a triangular field where two sides measure 450 yards and 320 yards. The angle between these two sides measures 80º. The farmer wishes.
Class Work 1.Sketch a right triangle that has acute angle , and find the five other trig ratios of . 2.Evaluate the expression without using a calculator.
Triangle Warm-up Can the following side lengths be the side lengths of a triangle?
9.5 Apply the Law of Sines When can the law of sines be used to solve a triangle? How is the SSA case different from the AAS and ASA cases?
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